Difference between revisions of "Borrichia ×cubana"
Mem. Torrey Bot. Club 16: 116. 1920.
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|elevation=0–10 m | |elevation=0–10 m | ||
|distribution=Fla.;West Indies (Cuba). | |distribution=Fla.;West Indies (Cuba). | ||
− | |discussion=<p>Borrichia ×cubana is a fertile F1 hybrid between B. frutescens and B. arborescens. It is found where the parental species are sympatric; backcrosses of the hybrid with either parent appear to be infertile.</p> | + | |discussion=<p><i>Borrichia ×cubana</i> is a fertile F1 hybrid between <i>B. frutescens</i> and <i>B. arborescens</i>. It is found where the parental species are sympatric; backcrosses of the hybrid with either parent appear to be infertile.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Borrichia ×cubana | name=Borrichia ×cubana | ||
− | |||
|authority=Britton & S. F. Blake | |authority=Britton & S. F. Blake | ||
|rank=species | |rank=species | ||
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|publication year=1920 | |publication year=1920 | ||
|special status= | |special status= | ||
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_319.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae |
Latest revision as of 21:11, 5 November 2020
Stems erect. Leaves (at least mid cauline) elliptic, 4–10 × 1–3 cm, margins dentate to serrate (at least mid portions, often undulate as well), faces sericeous to puberulent (hairs unequal) or glabrate. Heads borne singly. Involucres hemispheric, 7–11 mm. Phyllaries 16–25 in 3–4 series (obovate, apices cuspidate, indument similar to leaves). Paleae: apices cuspidate (not spine-tipped). Ray florets 14–25; laminae 5–7.5 × 2.5–3.5 mm. Disc florets 25–60; corollas 5–6 mm, lobes 1.5–2 mm. Cypselae 3–5 mm, 3–4-angled. 2n = 28.
Phenology: Flowering late spring–summer.
Habitat: Sandy and rocky coasts
Elevation: 0–10 m
Distribution
Fla., West Indies (Cuba).
Discussion
Borrichia ×cubana is a fertile F1 hybrid between B. frutescens and B. arborescens. It is found where the parental species are sympatric; backcrosses of the hybrid with either parent appear to be infertile.
Selected References
None.